Geoege van dee buegh



(ModeL) G. VAN DER BURGH.

Separable Button.

-Wz'znesses.

Patented Feb. 8,1881.

Invntor.

ASHINGTON, D C

UNITED STATES PATENT OFFICE.

GEORGE VAN DER BURGH, OF PROVIDENCE, RHODE ISLAND.

SEPARABLE BUTTON.

SPECIFICATION forming part of Letters Patent No. 237,644, dated February 8, 1881.

Application filed December 20, 1880. (ModeL) To all whom it may concern Be it known that I, GEORGE VAN DER. BURGH, of Providence, in the State of Rhode Island, have invented an Improvement in Separable Buttons, of which the following is a specification.

My invention relates to an improvement'in attaching the locking movements of a separable button to a front or head made of glass, shell, pearl, horn, hard rubber, celluloid, or similar material; and it consists in an improved construction of the metallic plate for holding the fixed post and the spring and pusher actuated locking catches, and also in certain depressions made on the back of the head of the button to receive the metallic plate and its locking devices.

Figure 1 represents an axial section of the button, taken in the line was of Fig. 3. Fig. 2 represents an axial section of the button, taken in the line a z of Fig. 3. Fig. 3 represents a plan view of the back of the head of the button. Fig. 4 represents a plan view of the back of the head of the button prior to the attachment of the locking movement. Fig. 5 represents a sectional view of the same, taken in the line :1: ac of Fig. 4. Fig. 6 represents a plan view of the holding-plate as formed or struck up prior to the attachment of the fixed post. Fig. 7 represents an edge view of the holding-plate and the fixed post.

In the accompanying drawings, A represents the head of the button, made of a suitable material, like shell, horn, glass, hard rubber, celluloid, &c., provided with a groove, a, running across the back of the head A, and also with circular or other suitably-formed depressions, b 1), upon opposite sides of the groove to. The depressions b b made in the surface of the back of the head A may be beveled under at their edges, as shown in the drawings, in order to more securely attach the looking parts of the button. The groove a and depressions b b may be readily cut when shell, born, &c., are employed, and may be molded therein in the case of glass or plastic material.

The holding-plate B is first struck up with flanges e e, as shown in Fig. 7 so as to form a suitable guide, J, for the push-bars D D, and is provided at its central portion with a slot, 0, through which the catch-hooks d d of the push-bars D D enter the hollow of the fixed post E, which is soldered to the plate B over the slot 0. The ears 0 0 upon opposite sides of the guide J are struck up in cup form or dished, in order that when inserted into the depressions b I) made in the back of the head A a slight tap upon a punch will suffice to spread the periphery of the ears against the overhanging sides of the depressions made to receive them, thus serving to firmly attach the metallic and non-metallic portions of the button to each other, the guide J for the pushbars occupying the groove a.

The spring F, held in the fixed post E, operates between the hook ends of the pushers to throw them outward.

The hollow post G, attached to the shoe H, is provided with openings ff at opposite sides to receive the ends of the catches d d in looking the button.

The hollowed face of the ears 0 C may be filled with solder, and then the separable movement, as above described, may be attached to a front plate of metal.

The shoe and locking movement attached to the plate B constitute a complete salable manufacture to be disposed of to the manufacturers of hard-rubber, celluloid, pearl, or similar buttons.

I claim as my invention 1. The button-head provided upon its under side with the depressions and the intermediate groove, substantially as and for the purpose specified.

2. The combination of the spring and pusher actuated catches of a separable button with a fixed post and a holding-plate provided with the dished ears for attachment to a buttonhead, substantially as described.

3. In a separable button, the holding-plate B, provided with flanges e e for guiding the push-bars D D, the slot 0 for communicating with the chamber of the attached post E and with the ears 0 O for attachment to the button-head, substantially as described.

GEORGE VAN DER BURGH.

Witnesses:

HARMON S. BABCOOK, H. W. HUBBARD. 

